What must scientists have to support their conclusions in an experiment?

To support their conclusions in an experiment, scientists must rely on data. Data serves as the empirical evidence collected during experiments or observations, which can be quantitatively measured or qualitatively assessed. This data enables scientists to analyze results, draw conclusions, and determine if their hypotheses are supported or refuted based on observable and reproducible outcomes.

By utilizing data, scientists can provide objective proof that their results are valid, fostering trust and repeatability in scientific findings. This reliance on data differentiates science from mere opinions or assumptions, which are not grounded in systematic investigation or evidence. Theories can emerge from data over time, but they are not required for initial conclusions; it is the data that forms the backbone of scientific inquiry and supports the claims made by researchers.